Avery's first word was "uh-oh."
Not a blunt "uh-oh," but a sing-songy "uh-oh" -- rising pitch on the "uh" and descending terminal pitch on the "oh."
Learned, evidently, from a toy known as The Laugh & Play Puppy, which says "uh-oh" if you knock it over. It took Avery less than two months to kill it she knocked it over so many times.
Adorable. And a harbinger of things to come.